There are a number of very well known peninsulas, some of them very scenic. As such, there are many well known hotels, resort hotels, attractions, and sites to see in many of these locations.
The Balboa Peninsula in Newport Beach, CA has one of the busiest pleasure craft harbors in the world on one side, the channel to the ocean on the end, and the Pacific Ocean on the third side.
The Upper Peninsula in Michigan is much colder but also very scenic, and a boating hub jutting into the Great Lakes.
On a larger scale the state of Florida is a peninsula jutting into the Atlantic Ocean, the Gulf of Mexico, and approaching the Caribbean Sea.
The Iberian Peninsula in Southwest Europe is a well known peninsula including Spain, Portugal and Andorra. Saudi Arabia is a peninsula.
San Francisco, Monterrey, and Marin County in California are peninsulas.
Cape Cod is a peninsula.
There are numerous other examples, but these are some of the better known ones.